Origin of Species

What is suggested by the figure?

• Horses appeared no more than a million years ago and had no ancestors before that time.

• There were no animals that would be considered to be related to horses 50-55 million years ago.

• The modern horse is related to other extinct species.

• The hyracotherium is the same species as the modern horse.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Change in the hereditary features of a type of organism over time is ________.

• growth

• biogenesis

• spontaneous generation

• evolution

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-1

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Although Darwin did not know about genes, he could see that animals of the same species who had slight variations that helped them to survive longer could produce more offspring than animals who were not as well equipped. Which of the following could be an example of a variation that would help a group of animals survive?

• black bears in a region that was always covered with snow

• turtles with long necks on an island where the food source was elevated

• choosing a cat to take home from an animal shelter

• planting a certain kind of flower to attract butterflies

Tags

NGSS.MS-LS4-4

Although Darwin traveled around the world observing and collecting animals and plants, he was especially interested in those he saw on the _______________ Islands.

• Carribean

• Galapagos

• Canary

• Hawaiian

Homologous structures indicate that two or more species might share ______________________________.

• parents

• habitat

• food

• common ancestors

Tags

NGSS.MS-LS4-2

What may a series of helpful variations in a species result in?

• competition

• fossils

• adaptation

• climatic change

Tags

NGSS.MS-LS4-4

These are analogous structures because they look different but are similar in origin.

• True

• False

Tags

NGSS.MS-LS4-2

These are homologous structures because they are from different origins, but look and act alike.

• True

• False

Tags

NGSS.MS-LS4-2

_______ are remains of life from an earlier time.

• sedimentary rocks

• fossils

• variations

• limestones

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which scientist is credited with the theory of natural selection as presented in 'On the Origin of Species'?

• A) Gregor Mendel

• B) Charles Darwin

• C) Alfred Russel Wallace

• D) Jean-Baptiste Lamarck

Tags

NGSS.MS-LS4-4